Eerie (adjective)

1. Strange and mysterious, esp. in an unsettling way.
2. Suggesting a supernatural or ghostly presence.
3. Inspiring a feeling of unease or fear.

Origin:

From old english ēarg "cowardly, timid", from proto-germanic *aizagaz, related to old high german eisig "fearful".

Examples:

1. The abandoned house had an eerie feeling.
2. The graveyard at night had an eerie atmosphere.
3. The sound of the wind was eerie.
4. The fog made the forest look eerie.
5. The doll had an eerie resemblance to a real person.